Eigenvalues of Hückel systems of equivalent points. - Patrick W. Fowler; Arnout Ceulemans; Liviu F. Chibotaru (Discret. Math., 2000)

Molcas 8: New capabilities for multiconfigurational quantum chemical calculations across the periodic table. - Francesco Aquilante; Jochen Autschbach; Rebecca K. Carlson; Liviu F. Chibotaru; Mickaël G. Delcey; Luca De Vico; Ignacio Fdez. Galván; Nicolas Ferré; Luis Manuel Frutos; Laura Gagliardi; Marco Garavelli; Angelo Giussani; et al. (J. Comput. Chem., 2016)